New type of lightweight high-strength foamed concrete blocks

doi:10.1088/1755-1315/570/5/052015

	New type of lightweight high-strength foamed concrete blocks
	Zhou,Bo 3; Zhao,Yuhong 3; Li,Zhe 1,2
刊名	IOP Conference Series: Earth and Environmental Science
	2020-10-01
卷号	570 期号:5
ISSN号	1755-1307
DOI	10.1088/1755-1315/570/5/052015
英文摘要	Abstract Lightweight high-strength concrete materials have been paid increasing attention with the development of the civil engineering technology. This study tested the effects of the admixture ratio on the properties of lightweight high-strength foamed concrete (LWHSFC) samples in a laboratory. The results demonstrated that a type of foamed concrete with 1200 kg/m3 density and >15 MPa uniaxial compressive strength can be produced by chemical foaming and by adding three types of materials (i.e., silica fume, slag, and fly ash) to the cement–fine sand matrix at an optimized mix ratio. The laboratory tests also showed that the failure mechanism of the LWHSFC was similar to ordinary concrete (i.e., longitudinal splitting failure). The angle between the failure surface and the vertical load direction was 53°–76°, indicating the material’s brittleness. The decreasing order of the compressive strength of the LWHSFC with one type of mineral powder when tested 28 days after casting was: silica fume to slag to fly ash. Moreover, the decreasing order of the compressive strength of the LWHSFC with two types of mineral powder admixtures when tested 28 days after casting was silica fume + slag to silica fume + fly ash to slag + fly ash.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:1755-1307-570-5-052015
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/15604]
专题	中科院武汉岩土力学所
作者单位	1.University of Chinese Academy of Sciences, Beijing 100049, China. 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China. 3.Shanxi Province Communications Planning Surveying and Designing Institute Co., Ltd, Taiyuan, 030012, China.
推荐引用方式 GB/T 7714	Zhou,Bo,Zhao,Yuhong,Li,Zhe. New type of lightweight high-strength foamed concrete blocks[J]. IOP Conference Series: Earth and Environmental Science,2020,570(5).
APA	Zhou,Bo,Zhao,Yuhong,&Li,Zhe.(2020).New type of lightweight high-strength foamed concrete blocks.IOP Conference Series: Earth and Environmental Science,570(5).
MLA	Zhou,Bo,et al."New type of lightweight high-strength foamed concrete blocks".IOP Conference Series: Earth and Environmental Science 570.5(2020).